d: and i'm darren hefty. thanks for joining us today. one of the big concerns that farmers across the country have in their fields is compaction. we'll talk about what's the best way to address compaction fall, we've been talking about nutrients and soil testing. well, totoy we're going to focus on a nutrient you might not have thought a lot about, but it's incredibly important for several aspects of every crop you raise. it's copper. we'll talk about it later in the show. d: we have a very difficult-to-control weed of the week that we'll talk about; but first, here's this week's farm basics. b: during our farm basics time today, we're going to talk about a commonly asked question from non-farmers. it's, "why do farmers leave some corn rows standing in their fields each winter?" d: well, it doesn't make any sense, does it? you look at corn fields, and you think, "well, they're going to harvest everything. this is how farmers make money, is